| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Melt Processing, Casting and Recycling
|
| Presentation Title |
Liquid Alloy Atomistic Modelling Perspective to Al Alloy Design |
| Author(s) |
Philippe P. Jarry, Alaa Fahs, Noel Jakse |
| On-Site Speaker (Planned) |
Philippe P. Jarry |
| Abstract Scope |
There are two main present drivers for Al alloy design from a casting point of view: alloys for additive manufacturing for which the objective is to maximise solute supersaturation, and increasing the recycled content of conventionally cast alloys. For the former the idea is to promote solute trapping. For the latter, a possibility is to distribute constituent particles as finely and uniformly as possible in the solidification microstructure by promoting dendritic grain growth morphology. In both cases, minimising solute diffusivity in the liquid phase is desirable. Now this property is governed by atomic arrangement, that is, short and medium range order in the liquid, in contrast with the crystalline order of fcc-Al. The present paper aims at giving an overview of this scientific issue, with a focus on the results obtained by Ab Initio Molecular Dynamics modelling of liquid Al-Mg, Al-Si and Al-Mg-Si alloys. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Solidification, Modeling and Simulation |